[chainlink] check links on edu.chainguard.dev #3994

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- url: https://www.gnu.org/gnu/thegnuproject.en.html
  files:
    - ../../content/chainguard/containers/concepts/glibc-vs-musl.md
- url: https://nvd.nist.gov/vuln
  files:
    - ../../content/software-security/cves/cve-intro.md
    - ../../content/software-security/cves/cve-remediation.md
- url: https://www.gnu.org/software/inetutils/manual/html_node/The-_002enetrc-file.html
  files:
    - ../../content/chainguard/libraries/introduction/access.md
- url: https://www.gnu.org/software/libc/
  files:
    - ../../content/chainguard/containers/concepts/glibc-vs-musl.md
    - ../../content/chainguard/containers/security-and-compliance/vulnerability-management/cve-risk.md
    - ../../content/open-source/wolfi/overview.md
    - ../../content/platform/factory/overview/index.md
- url: https://www.rfc-editor.org/rfc/rfc9162
  files:
    - ../../content/open-source/sigstore/cosign/cosign-manual-way.md
- url: https://www.gnu.org/software/libc/manual/html_node/Function-Index.html
  files:
    - ../../content/chainguard/containers/concepts/glibc-vs-musl.md
- url: https://www.rfc-editor.org/info/rfc9846/
  files:
    - ../../content/chainguard/chainguard-os/openssl-3.6.md
    - ../../content/chainguard/chainguard-os/openssl-4.0.md